Collisions of keV energy H atoms with the rare gases: Absolute differential cross sections at small angles
R. S. Gao, L. K. Johnson, K. A. Smith, and R. F. Stebbings
Phys. Rev. A 40, 4914 (1989)
Absolute differential cross sections are reported for collisions between 0.5, 1.5, and 5.0-keV-energy H atoms and He, Ne, Ar, Kr, and Xe over the laboratory-frame angular range 0.018°0.5°. The scattered neutral particles are detected, and the measured cross sections include both elastic and inelastic events. The H-He results are in excellent accord with previous measurements at larger angles. Empirical interaction potential-energy curves have been extracted from the data for all collisions studied.